JP2915829B2 - Unloading equipment for bulk cargo - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unloading apparatus for continuously transporting bulk cargo such as wood chips and soybean meal from a hold, which has an unstable angle of repose and is relatively difficult to cut.

[0002]

2. Description of the Related Art Bulk cargo such as wood chips is aggregated and adhered due to shaking during transportation, has no fluidity, and must be discharged while excavating and cutting.

[0003] Conventionally, grab buckets or suction-type transport pipes have been used for unloading bulk goods.

At the time of unloading using a grab bucket, it is necessary to put a bulldozer in a hold and to carry out cargo scraping, break-in, and bottom-draining operations in parallel with the unloading in order to break the closely packed cargo. In addition, unloading efficiency is low due to intermittent work, and a part of the unloaded cargo is scattered as dust, resulting in a loss of the cargo and contaminating the surrounding environment.

[0005] On the other hand, even in the case of unloading by a suction type transport pipe, since the cargoes are in close contact with each other and are not easily cut off, suction is difficult unless the excavation work is performed in parallel as in the case of using a grab bucket. It is.

[0006] Further, in any of the methods, the work time is long and a large number of skilled workers are required. I have.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to efficiently discharge bulk cargo such as wood chips and soybean meal loaded on a carrier from an arbitrary hold. It is to propose a possible unloading device.

[0008]

In the unloading device according to the present invention, the device is mounted on a bogie traveling on a deck so as to be freely movable, and a suction nozzle for suctioning cargo is provided with a digging mechanism. It is designed to suck while closely excavating cargo. As a result, automatic and continuous unloading work becomes possible, and it is possible to improve unloading efficiency, work with a small number of people, and improve the surrounding environment.

The unloading device according to the present invention enables the suction of the cargo corresponding to the shape of the hold by turning the suction nozzle, and moves the tip of the nozzle to the bottom of the hold by controlling the position thereof, thereby performing the bottom lifting operation. Can greatly reduce the burden on the user.

[0010] The unloading device according to the present invention comprises:
A traversing trolley that moves the traveling trolley in the side direction, a screw-type suction unit that includes a suction tube attached to the traversing vehicle, a vertically expandable and contractible suction pipe and a suction nozzle attached to the tip of the suction pipe, and a suction nozzle. A swivel device provided near the suction nozzle mounting portion of the suction tube for turning in a substantially horizontal plane, and a collection / separation device provided on the traveling carriage for separating the cargo suctioned and collected from the suction tube from air, It has a conveyor installed on a traveling trolley for transporting cargo discharged from the collection and separation device to the side of the ship, and the width of the opening of the suction nozzle is greater than the length of either the fore-aft direction or the side of the ship's hold inner wall. Is also short.

In a preferred embodiment of the unloading device according to the present invention, the nozzle of the suction means has a divergent opening, a cover attached to the opening, and a cover side protruding from the opening so as to be rotatable. A supported rotating shaft, a blade having a large number of teeth on an outer peripheral portion, which is helically attached to the rotating shaft, at least two or more on one side, and left and right symmetrically. And a at least one drive for driving the rotating shaft.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the present invention in which a discharge device is installed on a carrier. FIG. 3 shows an appearance of a suction nozzle for sucking bulk cargo in the unloading device according to the present invention. FIG.
Shows a sectional view of the suction nozzle. FIG. 5 shows the blades of the suction nozzle, and FIG. 6 shows a rotating disk around the suction nozzle.

As shown in FIGS. 1 and 2, the carrier 1 is provided with a plurality of holds 2. On the upper deck 3, two unloading devices 4 according to the present invention are installed. Each unloading device is equipped with a traveling cart 5 and a traversing cart 6, a conveyor 7, a bag filter 8, an air transport pipe 9, and a suction blower 10 attached to the traveling cart 5. A separation device 11 and a suction pipe 12 are provided.

The traveling cart 5 straddles the hatch 13 of the hold 2,
The rails 14 mounted on the upper deck 3 can be moved in the bow and stern directions by driving means (not shown). The traversing trolley installed on the traveling trolley 5 is moved on the traveling trolley 5 in a ship side direction by a driving unit (not shown).

The suction tube 12 includes an upper fixing portion 16 fixed to the guide frame 15 and a lower telescopic portion 17 slidably fitted into the upper fixing portion 16 from below. Is extended and contracted by a winch 18 attached to the guide frame 15. A suction nozzle 20 and a turning device 19 are provided at the tip of the lower expandable portion 17, and the suction nozzle 20 can be turned in a substantially horizontal plane by the turning device 19.

The other end of the upper fixing portion 16 of the suction tube 12 is connected to a separation and collection device 11 installed on the traversing carriage 6.

A rotary valve 21 is installed at the lower part of the separation and collection device 11, and one end of the air transport pipe 9 is connected to the upper part. The other end of the air transport pipe 9 is fixed to one end of a telescopic part 22 of a horizontal telescopic pipe fixed to the trolley 6. The other end of the horizontal telescopic tube telescopic part 22 is slidably fitted into a horizontal telescopic tube fixing part 23 fixed to the traveling vehicle 5, and expands and contracts with the movement of the traversing vehicle 6. A branch pipe 24 is connected to the other end of the horizontal telescopic pipe fixing portion 23, and a bag filter 8 is attached to the tip of the branch pipe 24.

The bag filter 8 is switched by operating a valve (not shown), and one of them is selectively used. Exhaust pipe 25 on the outlet side of bag filter 8
Is connected, and the other end of the exhaust pipe 25 is connected to the suction blower 10.

Further, the ship 1 is provided with a belt conveyor 26 on the upper deck 3 on one ship side, and belt conveyors 27 and 28 for outboard discharge are provided on the front and rear sides of the conveyor 26.
The traveling trolley 5 is provided with a hopper 29 located above the conveyor 26 for discharging the cargo sent from the conveyor 7 to the belt conveyor 26, and the conveyor 7 is longer than the moving distance of the traversing carriage 6. And reaches above the hopper 29.

As shown in FIG. 3 and FIG.
Has a suction opening 30 having a divergent shape at the end, and a digging portion cover 31 provided at a lower portion thereof, and a rotary shaft 33 having blades 32 mounted in the digging portion cover 31 to project a cover side wall 34. It is rotatably supported. At both ends of the rotating shaft 33, a rotating disk 35 and a rotational force transmitting device 36 are attached near one of the rotating disks 35, and are connected to a driving device 37 provided on the excavation section cover 31.

The rotational force transmitting devices 36 can be provided at both ends of the rotating shaft 33, and a driving device 37 can be provided for each of them.

As shown in FIG. 4, the blades 32 are spiral and are arranged symmetrically at least two or more on each side.

As shown in FIGS. 5 and 6, the outer circumferences of the blade 32 and the rotating disk 35 have a saw-tooth shape. This makes it easier for the blades to dig into the cargo and reduces excavation resistance, resulting in lower power loss,
In addition, the working efficiency can be improved.

The shapes of the outer peripheral portions of the blades 32 and the rotating disk 35 can be other shapes that allow the cargo to be excavated, for example, a comb-like shape.

Unloading of bulk cargo such as wood chips and soybean meal is performed in the following procedure. First, the traveling carriage 5 is moved above the target hold 2. Next, the trolley 6 is moved to a predetermined location on the hold 2. Thereafter, the winch 18 is operated, the lower telescopic portion 17 of the suction pipe 12 is inserted into the hold 2 through the hatch 13, and the suction nozzle 20 is placed on the cargo loaded in the hold 2. The blades 32 and the rotating disk 35 are rotated by the driving device 37 attached to the suction nozzle 20 to excavate and suction the cargo.

The bulk cargo in the hold 2 is subject to vibration during transportation,
Although they are in close contact with each other due to shaking etc., it is difficult to suck as it is, but the close contact is released by the rotational force of the rotating disk 35 and the blade 32, and the inside of the suction opening 30 diverging along the side surface of the blade 32 Released. The cargo flowing into the suction opening 30 easily flows into the telescopic suction pipe 17 due to the suction flow generated from the suction blower 10.

The bulk cargo passing through the suction pipe 12 is separated from the air by the separation / collection device 11, and is deposited on the lower portion of the separation / collection device 11. The accumulated cargo is discharged by the rotary valve 21 to the conveyor 7 installed on the traveling carriage 5 by a fixed amount. Further, the cargo discharged to the conveyor 7 is
9. Discharged outboard via conveyor 26 and conveyors 27,28.

On the other hand, the air containing the dust of the bulk cargo passes through the separation / collection device 11 and then passes through the air transport pipe 9 and the horizontal telescopic pipe 2.
The dust is removed by flowing into the bag filter 8 through 2, 23 and the branch pipe 24, and is discharged to the atmosphere via the suction blower 10.

As the unloading proceeds, the height of the cargo in the hold 2 gradually decreases.
Are sequentially extended downward so that the suction nozzle 20 is always positioned above the cargo, and the suction nozzle 20 is
To excavate and suction the cargo.

By carrying out the above procedure together with the movement of the traveling trolley and the traversing trolley, the expansion and contraction of the suction pipe and the rotation of the suction nozzle, the unloading work of the bulk cargo in the hold is performed. In the apparatus according to the present invention, all operations can be automated.

[0032]

As described above, the unloading device according to the present invention is capable of automating the operation and using a nozzle capable of efficiently excavating and sucking closely attached cargo, thereby improving the efficiency of the unloading operation. And a small number of people who do not always need skilled workers can do the work. Furthermore, since the generation of dust during the operation can be suppressed, it is also possible to reduce environmental pollution in the surroundings.

[Brief description of the drawings]

FIG. 1 is a sectional view and a top view showing a state in which a discharge device according to the present invention is installed on a ship.

FIG. 2 is a side sectional view of the unloading device according to the present invention installed on a ship.

FIG. 3 is a side view of a suction nozzle of the unloading device according to the present invention.

FIG. 4 is a cross-sectional view of the tip of a suction nozzle of the unloading device according to the present invention.

FIG. 5 is a diagram showing a shape of a blade outer peripheral portion at a tip end portion of a suction nozzle.

FIG. 6 is a diagram showing a shape of an outer peripheral portion of a rotating disk at a tip end portion of a suction nozzle.

[Explanation of symbols]

 1 Carrier 2 Hold 3 Upper deck 4 Unloading device 5 Traveling trolley 6 Traversing trolley 7 Conveyor 8 Bag filter 9 Air transport pipe 10 Suction blower 11 Collection and separation device 12 Suction pipe 13 Hatch 14 Rail 15 Guide frame 16 Suction pipe upper fixing part 17 Lower part of the suction pipe 18 Winch 19 Swivel device 20 Suction nozzle 21 Rotary valve 22 Horizontal expansion pipe expansion part 23 Horizontal expansion pipe fixing part 24 Branch pipe 25 Exhaust pipe 26, 27, 28 Belt conveyor 29 Hopper 30 Suction opening 31 Excavation Cover 32 Blade 33 Cover side wall 34 Rotating shaft 35 Rotating disk 36 Rotating force transmission device 37 Drive device

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65G 65/22 B63B 27/00 B65G 67/60

Claims (2)

(57) [Claims] Claims 1. An unloading device for unloading bulk cargo loaded in a hold out of a ship, comprising: a traveling vehicle that straddles a hatch of a cargo hold and moves on an upper deck in a bow-to-sail direction; A trolley moving in the direction, a vertically extending telescopic suction tube mounted on the traverse vehicle, and a screw-type suction means including a suction nozzle mounted on the tip of the suction tube, and the suction nozzle is swung in a substantially horizontal plane. Suction tube
A turning device provided in the vicinity pull nozzle mounting portion, since the cargo sucked collected from the suction pipe to separate air
Of the collection and separation device installed on the traveling trolley, and transport the cargo discharged from the collection and separation device to the side of the ship
For, in load <br/> fried apparatus Ru comprising a conveyor which is installed on the traveling carriage, stern width is Senso inner wall of the opening of the suction nozzle and
Characterized by being shorter than any length in the side direction
Equipment for unloading cargo. 2. The unloading device according to claim 1, wherein the suction nozzle has a divergent opening, a digging portion cover attached to the opening, and a digging portion cover side portion inside the digging portion cover. A rotating shaft protruding and rotatably supported; a blade having a large number of teeth on an outer peripheral portion, which is spirally mounted on at least two sides of the rotating shaft and symmetrically on the left and right sides; and mounted on both ends of the rotating shaft. An unloading device for bulk cargo, comprising: a rotating disk having a plurality of teeth on an outer peripheral portion; and at least one drive device for driving a rotating shaft.